None of those "eat this/not that" things are decent replacements. Most of the "this"s are just not good, which is why I was eating "that" in the first place.
That said - to me, kale chips made with baby kale are the closest substitute to potato chips. For everything else (sweet potato chips, turnip chips, etc) the texture is off. But baby kale chips have a similar crispy crumbliness to them. Don't get me wrong, they're still bitter and taste like kale, but they chew like a potato chip should.